CN202326855U - Engineering machinery and braking device thereof - Google Patents
Engineering machinery and braking device thereof Download PDFInfo
- Publication number
- CN202326855U CN202326855U CN2011204610785U CN201120461078U CN202326855U CN 202326855 U CN202326855 U CN 202326855U CN 2011204610785 U CN2011204610785 U CN 2011204610785U CN 201120461078 U CN201120461078 U CN 201120461078U CN 202326855 U CN202326855 U CN 202326855U
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- Prior art keywords
- break
- housing
- piston
- oil
- rod member
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Abstract
The utility model discloses a braking device. In the structure of a resetting component of the braking device, a guide rod comprises a head end part and a rod member part, wherein an elastic component (52) is sleeved at the outer part of the rod member part, and is arranged between the head end part and a piston (4) in a pressed holding manner, positioning steps (512a) are arranged on the rod member part, and the rod member part penetrates through an unthreaded hole (41) in the piston (4), is connected with the interior of a connecting hole in an inner wall of a shell (1), and is supported on a circumferential inner wall surface of the connecting hole through the positioning steps (512a). As the braking device is provided with the resetting component, on one hand, the structure of the braking device per se can be simplified, so that the production cost can be lowered; and on the other hand, special tooling is not needed during the installation, so that an installation process can be simplified, and the installation cost can be reduced. In addition, the utility model also discloses engineering machinery comprising the braking device.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of break.In addition, the utility model also relates to a kind of engineering machinery that comprises above-mentioned break.
Background technique
At present, in construction machinery industry, mainly have two types break, dry brake and wet brake.Though dry brake is simple in structure, braking moment is little, and return weak effect, friction plate separate thoroughly uneasy the generation and drag phenomenon with brake disc, break temperature rise, heat resistanceheat resistant decline poor performance.In addition, dry brake is exposed in the external environment condition fully, is difficult to prevent dustiness and corrosion, be prone to produce spark when braking simultaneously, and is abominable in operating mode, have under the environment of requirement of explosion proof, has great potential safety hazard.
At present, though the requirement that several kinds of wet brakes that exist in the industry can satisfy big braking moment and under bad working environments, work all exists complex structure, installing/dismounting is inconvenient and shortcoming such as easy-maintaining not to some extent.
Particularly; In the structure of existing a kind of typical wet brake; Its reset components comprises guide rod; The end of this guide rod is equipped with spring seat through jump ring, and the outer cover of guide rod is equipped with spring, and the inner end of guide rod is through being threadedly connected in the tapped hole on the brake casing inwall simultaneously.In said structure, when this reset components is installed, in order to obtain accurate spring pre compressed magnitude; Need to use special tooling; Under the clamping of this special tooling, make guide rod stretch into length suitable in the tapped hole, thereby guarantee that spring obtains accurate pre compressed magnitude.
In said structure, reset components comprises guide rod, spring seat, jump ring and four component of spring, thereby the structure more complicated, and the manufacturing cost is higher; In addition, during installation, need to use special tooling, thereby mounting process is comparatively complicated, installation cost is high.
In view of this, how break of the prior art being improved, thereby simplify its structure, and then reduce its manufacture cost and installation cost, is the problem that those skilled in the art need solution badly.
The model utility content
The technical problem that the utility model will solve is for providing a kind of break, and the reset components of this break can be simplified himself structure on the one hand, thereby can reduce manufacture cost; Do not need special tooling when installing on the other hand yet, thereby can simplify mounting process, reduce installation cost.In addition, another technical problem that will solve of the utility model is that a kind of engineering machinery that comprises above-mentioned break is provided.
For solving the problems of the technologies described above, the utility model provides a kind of break, comprises housing and hub spindle; In the inside of said housing, the external stability of said hub spindle is provided with the engagement cover that is used to install friction plate, and the inwall of said housing is provided with and the spaced braking plate of said friction plate; The inside of said housing also is provided with can move with piston that pushes said braking plate and said friction plate and the reset components that drives said piston reset vertically, and said reset components comprises guide rod and elastic member;
Said guide rod comprises cephalic par and rod member portion, and said elastic member is set in the outside and pressure holding of rod member portion between cephalic par and piston; Offer positioning step in the said rod member portion, said rod member portion passes the unthreaded hole on the said piston and is connected in the attachment hole on the said inner walls, and is supported on the circumferential internal face of said attachment hole with its positioning step.
Preferably, said guide rod is a bolt, and said cephalic par is the nut of bolt, and said rod member portion is the screw part of bolt; Said attachment hole is a tapped hole, and the inner end of said screw part is threadedly connected in the said tapped hole.
Preferably, said housing comprises the flange plate of shell body and this shell body of sealing, offers first oil groove on the said flange plate, and the inner chamber of said housing is communicated with the balance oil pocket of flange plate opposite side through this first oil groove.
Preferably, the quantity of said first oil groove is two, and the two is symmetrically distributed in the both sides of hub spindle.
Preferably, what said flange plate was positioned at said hub spindle further offers second oil groove with top, and is connected with at this said flange plate in second oil groove position and is convenient to the oil guide plate that lubricant oil gets into second oil groove.
Preferably, further offer lubricating channels on the side of said friction plate.
Preferably, said lubricating channels distributes with respect to the diameter symmetry on the said friction plate vertical direction;
One side of the diameter on this vertical direction, said lubricating channels comprise a plurality of middle part also horizontally disposed first groove, a plurality of second groove and a plurality of the 3rd grooves that are positioned at the bottom and are tilted to setting that are positioned at top and are tilted to down setting of being positioned at.
Preferably, but between said housing and the said piston also sealing be provided with to it and pour the just driving oil pocket that moves vertically of driven plunger of high pressure oil.
Preferably, drive the oil pocket position at this, said housing offers the detection hole that is used to detect piston position; This detection hole is radially offered and is communicated with said driving oil pocket along said housing.
In addition, for solving the problems of the technologies described above, the utility model also provides a kind of engineering machinery, comprises wheel; Said engineering machinery also comprises above-mentioned each described break, and said wheel is connected on the outer end of said hub spindle.
On the basis of existing technology, in the reset components of the break that the utility model provided, its guide rod comprises cephalic par and rod member portion, and said elastic member is set in the outside and pressure holding of rod member portion between cephalic par and piston; Offer positioning step in the said rod member portion, said rod member portion passes the unthreaded hole on the said piston and is connected in the attachment hole on the said inner walls, and is supported on the circumferential internal face of said attachment hole with its positioning step.
During installation, make rod member portion pass the unthreaded hole on the piston and be connected in the attachment hole on the inner walls, and make positioning step and the circumferential internal face of attachment hole in the rod member portion fit.In this kind structural design, through positioning step guide rod is positioned, and the calculating through relative dimensions, make that elastic member had accurate pre compressed magnitude just when the circumferential internal face of positioning step and attachment hole was fitted.
In sum, structure of the prior art relatively, the reset components structure of break only comprises guide rod and two component of elastic member in the utility model, thereby structure is able to simplify, the manufacturing cost is minimized.In addition, as indicated above, the installation of reset components does not need special tooling in the utility model, thereby its mounting process is able to simplify, and installation cost is minimized.
In addition, the engineering machinery that comprises above-mentioned break that the utility model provided, its technique effect is same as above, repeats no more at this.
Description of drawings
Fig. 1 is the structural representation of break among a kind of embodiment of the utility model;
Fig. 2 is the partial enlarged drawing at A position among Fig. 1;
Fig. 3 is the structural representation of the friction plate of break among Fig. 1.
Wherein, the corresponding relation between reference character and the component names is among Fig. 1 to Fig. 3:
1 housing; 11 shell bodies; 12 flange plate; 121 second oil grooves; 122 oil guide plates; 13 braking plates; 14 tapped holes; 15 drive oil pocket;
2 hub spindles;
3 engagement covers; 31 friction plates; 311 lubricating channels; 311a first groove; 311b second groove; 311c the 3rd groove;
4 pistons; 41 unthreaded holes;
51 bolts; 511 nuts; 512 screw part; The 512a positioning step; 52 elastic members;
6 sprocket wheels.
Embodiment
The core of the utility model is for providing a kind of break, and the reset components of this break can be simplified himself structure on the one hand, thereby can reduce manufacture cost; Do not need special tooling when installing on the other hand yet, thereby can simplify mounting process, reduce installation cost.In addition, another technical problem that will solve of the utility model is that a kind of engineering machinery that comprises above-mentioned break is provided.
In order to make those skilled in the art understand the technological scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of break among a kind of embodiment of the utility model; Fig. 2 is the partial enlarged drawing at A position among Fig. 1.
In one embodiment, the break that the utility model provided, as shown in Figure 1, comprise that housing 1 reaches through the rotatable hub spindle 2 that passes this housing 1 of bearing; In the inside of housing 1, the external stability of hub spindle 2 is provided with engagement cover 3, and the circumference of this engagement cover 3 is externally connected to friction plate 31, and this friction plate 31 can be connected through spline between overlapping 3 with meshing, and can move axially along splined shaft; The inwall of housing 1 is provided with and friction plate 31 spaced braking plates 13, passes through the arc groove Spielpassung between this braking plate 13 and the brake casing 1, and can in this arc groove, move vertically; The inside of housing 1 also is provided with can move with extruding braking plate 13 and the piston 4 of friction plate 31 and the reset components that driven plunger 4 resets vertically, and reset components comprises guide rod and elastic member 52.
As depicted in figs. 1 and 2, on the basis of said structure, guide rod comprises cephalic par and rod member portion, and elastic member 52 is set in the outside and pressure holding of rod member portion between cephalic par and piston 4; Offer positioning step 512a in the rod member portion, rod member portion passes the unthreaded hole 41 on the piston 4 and is connected in the attachment hole on housing 1 inwall, and is supported on the circumferential internal face of attachment hole with its positioning step 512a.
During installation, make rod member portion pass the unthreaded hole 41 on the piston 4 and be connected in the attachment hole on housing 1 inwall, and make positioning step 512a and the circumferential internal face of attachment hole in the rod member portion fit.In this kind structural design, 512a positions guide rod through positioning step, and the calculating through relative dimensions, makes that elastic member 52 had accurate pre compressed magnitude just when the circumferential internal face of positioning step 512a and attachment hole was fitted.
To sum up, structure of the prior art relatively, the reset components structure of break only comprises guide rod and 52 two component of elastic member in the utility model, thereby structure is able to simplify, the manufacturing cost is minimized.In addition, as indicated above, the installation of reset components does not need special tooling in the utility model, thereby its mounting process is able to simplify, and installation cost is minimized.
As shown in Figure 1, sealing is provided with and drives oil pocket 15 between housing 1 and the piston 4, in this driving oil pocket 15, pours high pressure oil; Just can promote piston 4 moves right; Thereby extrusion friction sheet 31 and braking plate 13 make to produce friction between friction plate 31 and the braking plate 13, thereby realize braking.
Need to prove; Technique scheme does not limit for the linkage structure between the attachment hole on rod member portion and housing 1 inwall; As long as any linkage structure can make this rod member portion be connected in the attachment hole; And can make positioning step 512a and the circumferential internal face of attachment hole fit, just all should be within the protection domain of the utility model.
Certainly, in order to make linkage structure simplify, rod member portion can be connected in the attachment hole through screw-thread fit.Particularly, as depicted in figs. 1 and 2, guide rod is a bolt 51, and cephalic par is the nut 511 of bolt 51, and rod member portion is the screw part 512 of bolt 51; Attachment hole is a tapped hole 14, and the inner end of screw part 512 is threadedly connected in the tapped hole 14.In this kind structure; Through spanner rotary nut 511; Just can be easily the inner end of screw part 512 be threadedly connected in the tapped hole 14 on housing 1 inwall; Can't rotate until spanner, this moment, then the positioning step 512a on the screw part 512 fitted with the internal face of housing 1, and this moment, elastic member 52 just obtained required pre compressed magnitude.
Further, as shown in Figure 1, housing 1 comprises the flange plate 12 of shell body 11 and this shell body 11 of sealing, offers first oil groove on the flange plate 12, and the inner chamber of housing 1 is communicated with the balance oil pocket of flange plate 12 opposite sides through this first oil groove.This kind structural design makes the lubricant oil in the inner chamber of housing 1 be communicated with lubricant oil in the opposite side balance oil pocket; In working order down; Along with component stir, the lubricant oil at two places is realized circulation, because lubricant oil and extraneous area of contact in the balance oil pocket are big; Good heat dissipation effect, thereby this kind structural design can make the housing 1 inner lubricant oil of break have better radiating effect.In addition, particularly, the quantity of first oil groove is two, and the two can be symmetrically distributed in the both sides of hub spindle 2.
Further, as shown in Figure 1, what flange plate 12 was positioned at hub spindle 2 further offers second oil groove 121 with top, and is connected with at these second oil groove, 121 position flange plate 12 and is convenient to the oil guide plate 122 that lubricant oil gets into second oil groove 121.In this kind structural design, along with the stirring of sprocket wheel 6, the lubricant oil that sprocket wheel 6 stirs gets into the inside of the housing 1 of break through this second oil groove 121, thereby realizes the circulation cooling of lubricant oil.
In technique scheme, can also make concrete design to the structure of friction plate 31; Particularly, please refer to Fig. 3, Fig. 3 is the structural representation of the friction plate 31 of break among Fig. 1.
As shown in Figure 3, further offer lubricating channels 311 on the side of friction plate 31.In order to obtain better lubrication effect, can make further design to this lubricating channels 311.Such as, as shown in Figure 3, lubricating channels 311 distributes with respect to the diameter symmetry on friction plate 31 vertical directions; One side of the diameter on this vertical direction, lubricating channels 311 comprise a plurality of the middle part also horizontally disposed first groove 311a, a plurality of second groove 311b and a plurality of the 3rd groove 311c that are positioned at the bottom and are tilted to setting that are positioned at top and are tilted to down setting of being positioned at.
In addition, as shown in Figure 3, between the first groove 311a and the second groove 311b, and cross-over design can also be carried out between the first groove 311a and the 3rd groove 311c, thereby lubrication effect can be further improved.
On the basis of technique scheme, can also make further improvement.Such as, driving oil pocket 15 positions at this, housing 1 offers and is used to detect piston 4 position Detection holes; This detection hole along housing 1 radially offer and with drive oil pocket 15 and be communicated with.In this kind structural design, stretch in this detection hole through measuring tool, detect under the braking situation position with non-braking situation lower piston 4, can draw the size of brake clearance.When this brake clearance surpasses predetermined value, mean friction plate 31 excessive wears, thereby need in time more renewal of facing renewal 31, and then guarantee that braking is reliable.
In addition, the utility model also provides a kind of engineering machinery, and this project machinery comprises wheel; This project machinery also comprises the break in above-mentioned any technological scheme, and wheel is connected on the outer end of hub spindle 2.Other parts of this project machinery can be with reference to existing technology, and this paper no longer launches.
More than engineering machinery that the utility model provides and break thereof have been carried out detailed introduction.Used concrete example among this paper the principle and the mode of execution of the utility model are set forth, above embodiment's explanation just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a break comprises housing (1) and hub spindle (2); Inside in said housing (1), the external stability of said hub spindle (2) are provided with the engagement cover (3) that is used to install friction plate (31), and the inwall of said housing (1) is provided with and the spaced braking plate of said friction plate (31) (13); The inside of said housing (1) also is provided with can move with the piston (4) that pushes said braking plate (13) and said friction plate (31) vertically and drive the reset components that said piston (4) resets, and said reset components comprises guide rod and elastic member (52); It is characterized in that said guide rod comprises cephalic par and rod member portion, said elastic member (52) is set in the outside and pressure holding of rod member portion between cephalic par and piston (4); Offer positioning step (512a) in the said rod member portion, said rod member portion passes the unthreaded hole (41) on the said piston (4) and is connected in the attachment hole on said housing (1) inwall, and is supported on the circumferential internal face of said attachment hole with its positioning step (512a).
2. break as claimed in claim 1 is characterized in that, said guide rod is bolt (51), and said cephalic par is the nut (511) of bolt (51), and said rod member portion is the screw part (512) of bolt (51); Said attachment hole is tapped hole (14), and the inner end of said screw part (512) is threadedly connected in the said tapped hole (14).
3. according to claim 1 or claim 2 break; It is characterized in that; Said housing (1) comprises the flange plate (12) of shell body (11) and this shell body (11) of sealing; Said flange plate offers first oil groove on (12), and the inner chamber of said housing (1) is communicated with the balance oil pocket of flange plate (12) opposite side through this first oil groove.
4. break as claimed in claim 3 is characterized in that, the quantity of said first oil groove is two, and the two is symmetrically distributed in the both sides of hub spindle (2).
5. break as claimed in claim 3; It is characterized in that; What said flange plate (12) was positioned at said hub spindle (2) further offers second oil groove (121) with top, and is connected with the oil guide plate (122) of being convenient to lubricant oil and getting into second oil groove (121) at this said flange plate in second oil groove (121) position (12).
6. according to claim 1 or claim 2 break is characterized in that, further offers lubricating channels (311) on the side of said friction plate (31).
7. break as claimed in claim 6 is characterized in that, said lubricating channels (311) distributes with respect to the diameter symmetry on said friction plate (31) vertical direction; One side of the diameter on this vertical direction, said lubricating channels (311) comprise a plurality of middle part also horizontally disposed first groove (311a), a plurality of second groove (311b) and a plurality of the 3rd grooves (311c) that are positioned at the bottom and are tilted to setting that are positioned at top and are tilted to down setting of being positioned at.
8. according to claim 1 or claim 2 break is characterized in that, said housing (1) and said piston (2) but between also sealing be provided with to it and pour the just driving oil pocket (15) that moves vertically of driven plunger (2) of high pressure oil.
9. break as claimed in claim 8 is characterized in that, drives oil pocket (15) position at this, and said housing (1) offers and is used to detect piston (2) position Detection hole; This detection hole is radially offered and is communicated with said driving oil pocket (15) along said housing (1).
10. an engineering machinery comprises wheel; It is characterized in that said engineering machinery comprises that also said wheel is connected on the outer end of said hub spindle (2) like each described break of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204610785U CN202326855U (en) | 2011-11-18 | 2011-11-18 | Engineering machinery and braking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204610785U CN202326855U (en) | 2011-11-18 | 2011-11-18 | Engineering machinery and braking device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326855U true CN202326855U (en) | 2012-07-11 |
Family
ID=46438835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204610785U Expired - Fee Related CN202326855U (en) | 2011-11-18 | 2011-11-18 | Engineering machinery and braking device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895005A (en) * | 2020-06-24 | 2020-11-06 | 盛瑞传动股份有限公司 | Method of assembling a brake assembly for a transmission |
-
2011
- 2011-11-18 CN CN2011204610785U patent/CN202326855U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895005A (en) * | 2020-06-24 | 2020-11-06 | 盛瑞传动股份有限公司 | Method of assembling a brake assembly for a transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130502 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130502 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |